[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libc/string/arm/memset.S b/ap/build/uClibc/libc/string/arm/memset.S
new file mode 100644
index 0000000..66aa603
--- /dev/null
+++ b/ap/build/uClibc/libc/string/arm/memset.S
@@ -0,0 +1,144 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Philip Blundell <philb@gnu.org>
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <features.h>
+#include <sys/syscall.h>
+#include <bits/arm_asm.h>
+
+.text
+.global memset
+.type memset,%function
+.align 4
+
+#if defined(THUMB1_ONLY)
+.thumb_func
+memset:
+ mov ip, r0
+ cmp r2, #8 @ at least 8 bytes to do?
+ bcc 2f
+
+ lsl r3, r1, #8
+ orr r1, r3
+ lsl r3, r1, #16
+ orr r1, r3
+
+ mov r3, #3
+1: @ Fill up to the first word boundary
+ tst r0, r3
+ beq 1f
+ strb r1, [r0]
+ add r0, r0, #1
+ sub r2, r2, #1
+ b 1b
+1: @ Fill aligned words
+ str r1, [r0]
+ add r0, r0, #4
+ sub r2, r2, #4
+ cmp r2, #4
+ bcs 1b
+
+2: @ Fill the remaining bytes
+ cmp r2, #0
+ beq 2f
+1:
+ strb r1, [r0]
+ add r0, r0, #1
+ sub r2, r2, #1
+ bne 1b
+2:
+ mov r0, ip
+ bx lr
+#else
+memset:
+ mov a4, a1
+ cmp a3, $8 @ at least 8 bytes to do?
+ blt 2f
+ orr a2, a2, a2, lsl $8
+ orr a2, a2, a2, lsl $16
+1:
+ tst a4, $3 @ aligned yet?
+#if defined(__thumb2__)
+ itt ne
+ strbne a2, [a4], $1
+ subne a3, a3, $1
+#else
+ strneb a2, [a4], $1
+ subne a3, a3, $1
+#endif
+ bne 1b
+ mov ip, a2
+1:
+ cmp a3, $8 @ 8 bytes still to do?
+ blt 2f
+ stmia a4!, {a2, ip}
+ sub a3, a3, $8
+ cmp a3, $8 @ 8 bytes still to do?
+ blt 2f
+ stmia a4!, {a2, ip}
+ sub a3, a3, $8
+ cmp a3, $8 @ 8 bytes still to do?
+ blt 2f
+ stmia a4!, {a2, ip}
+ sub a3, a3, $8
+ cmp a3, $8 @ 8 bytes still to do?
+#if defined(__thumb2__)
+ itt ge
+ stmiage a4!, {a2, ip}
+ subge a3, a3, $8
+#else
+ stmgeia a4!, {a2, ip}
+ subge a3, a3, $8
+#endif
+ bge 1b
+2:
+ movs a3, a3 @ anything left?
+ IT(t, eq)
+#if defined(__USE_BX__)
+ bxeq lr
+#else
+ moveq pc, lr @ nope
+#endif
+#if defined (__thumb2__)
+1:
+ strb a2, [a4], #1
+ subs a3, a3, #1
+ bne 1b
+ bx lr
+#else
+ rsb a3, a3, $7
+ add pc, pc, a3, lsl $2
+ mov r0, r0
+ strb a2, [a4], $1
+ strb a2, [a4], $1
+ strb a2, [a4], $1
+ strb a2, [a4], $1
+ strb a2, [a4], $1
+ strb a2, [a4], $1
+ strb a2, [a4], $1
+#if defined(__USE_BX__)
+ bx lr
+#else
+ mov pc, lr
+#endif
+#endif
+#endif
+
+.size memset,.-memset
+
+libc_hidden_def(memset)